Puppy Sick After Getting Shots

My puppy just got his shots, he's 6 weeks old. He threw up and keeps having the runs! One minute he's playful and the next minute he's not and won't move at all! Please tell me what should I do? I don't think it's the food, we changed his food 3 times.

When I take the 6 week old puppies for shots my vet warns me this can happen. He tells me that the dog won't have energy for the day and could have some vomiting and diarrhea. I am told to expect this for the first day. However, if this continues for two days or longer I am to take the dog back immediately. I have never had this issue with my dogs. I think I would call your vet immediately and tell them what is happening to the puppy.